APA aipamena

Edwards, C. A. (2004). Earthworm ecology (2nd. ed.). CRC Press.

Chicago Style aipamena

Edwards, Clive A. Earthworm Ecology. 2nd. ed. Boca Raton: CRC Press, 2004.

MLA aipamena

Edwards, Clive A. Earthworm Ecology. 2nd. ed. CRC Press, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.